663514432 has 56 divisors (see below), whose sum is σ = 1556674560. Its totient is φ = 274552320.

The previous prime is 663514391. The next prime is 663514441. The reversal of 663514432 is 234415366.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12544 + ... + 38527.

It is an arithmetic number, because the mean of its divisors is an integer number (27797760).

Almost surely, 2^663514432 is an apocalyptic number.

It is an amenable number.

663514432 is an abundant number, since it is smaller than the sum of its proper divisors (893160128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663514432 is a wasteful number, since it uses less digits than its factorization.

663514432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51119 (or 51109 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 663514432 is about 25758.7738838633. The cubic root of 663514432 is about 872.2014236039.

Adding to 663514432 its reverse (234415366), we get a palindrome (897929798).

The spelling of 663514432 in words is "six hundred sixty-three million, five hundred fourteen thousand, four hundred thirty-two".